Recovery and relapse in geriatric depression after treatment with antidepressants and ECT in a medical-psychiatric population.

The objective of this naturalistic, longitudinal treatment outcome study was to determine relapse rates in geriatric depression following treatment with antidepressants and electroconvulsive therapy in a medical-psychiatric population. Thirty-nine elderly patients (average age 71 years) with unipolar major depression were treated with either antidepressants (AD) or, if resistant to AD treatment, ECT followed by maintenance antidepressants. Patients were monitored over 18 months, and relapse rates were closely determined using the Longitudinal Interval Follow-up Evaluation (LIFE) and the 21-item Hamilton Depression Rating Scale. Although 90% of patients recovered from their index episode of depression, relapse rates were approximately 29%. These results indicate that in spite of high chances of recovery from geriatric depression, intensive psychopharmacologic and psychotherapeutic strategies are needed to decrease relapse rates in geriatric depression.

Lithium intolerance in a medical-psychiatric population.

This pilot study was designed to explore the tolerance and efficacy of lithium as an adjunctive prophylactic agent when added to maintenance antidepressant regimens following an episode of depression in an older medical-psychiatric population. In a randomized controlled trial, 27 depressed patients had either lithium carbonate or placebo added to their maintenance antidepressant (AD) regimen following an index episode of depression. Of 17 patients who received lithium carbonate, 76% (13/17) were unable to tolerate this agent for the duration of the study because of side effects (e.g., gastrointestinal disturbances or tremor). The four patients who tolerated lithium were monitored for relapse of depression over a 15-month follow-up period, and one relapsed (after a 49-week remission) whereas 60% (6/10) of the placebo patients relapsed. Cognitive functioning was stable in the lithium-treated patients who remained on therapy. The high rate of lithium intolerance in this study indicates that lithium dosing and serum levels must be conservatively managed in this clinical population.

Long-term outcome of treatment-resistant depression in older adults.

Seventeen elderly patients with treatment-resistant depression were reassessed 15 months and 4 years after treatment with an antidepressant agent or ECT. At 15 months 47% (seven of 15) were clinically improved, and at the 4-year follow-up 71% (10 of 14) were improved. These results indicate that treatment-resistant depression may improve over time because of either the natural course of the illness or persistent treatment efforts.

Quality-of-life changes and psychiatric and neurocognitive outcome after heart and liver transplantation.

A prospective study compared psychiatric, neurocognitive, and quality-of-life changes of heart and liver transplant patients. The 51 heart and 61 liver transplant candidates and recipients completed the Beck depression inventory (BDI), state-trait anxiety inventory (STAI), sickness impact profile (SIP), mini-mental state (MMS), California verbal learning test (CVLT), Wisconsin card sorting test (WCST), trailmaking test (TMT), and the impact message inventory (IMI). Data were gathered before transplant and at 3-month intervals for up to 1 year after transplant. Psychometric tests scores were correlated with electroencephalograms for the liver patients. Both groups showed significant improvements after transplant in neurocognitive functioning, depressive symptoms, and quality of life.

Dysnomia in the differential diagnosis of major depression, depression-related cognitive dysfunction, and dementia.

This study examined naming abilities in three groups of older adults with: I) major depression alone, II) major depression with reversible cognitive dysfunction, and III) dementia with depression. Groups I and II differed significantly from dementia patients in total correct responses to a visual-confrontation naming task (Boston Naming Test). Qualitative aspects of naming, specifically types of errors characterizing each patient group, were examined, but no statistically significant differences among groups were observed. The results support the contention that the presence of dysnomia may be useful in discriminating cognitive abnormalities secondary to dementia from cognitive dysfunction associated with depression.